From Traditional PE to Bio-Based Alternatives in Packaging
1. Conventional Stretch Film: Environmental Challenges
1.1 Material Composition & Issues
- Dominant Material: Linear Low-Density Polyethylene (LLDPE) accounts for 89% of global production (Smithers 2024)
- Key Concerns:
- Degradation Time: 450+ years in landfills (UNEP 2023)
- Recycling Rate: <10% due to contamination and mixed-material structures
- Carbon Footprint: 3.2kg CO₂ per kg produced (vs 1.8kg for recycled PE)
1.2 Industry Data Comparison
| Parameter | Traditional PE Film | Paper Alternatives |
|---|---|---|
| Production Energy | 85 MJ/kg | 40 MJ/kg |
| Marine Toxicity | High | None |
| Recyclability | Low (10%) | High (85%) |
2. Eco-Friendly Material Breakthroughs
2.1 Bio-Based Polymers
- PLA (Polylactic Acid) Films:
- Made from corn starch or sugarcane
- Compostable in 3-6 months (industrial facilities)
- Limitations: 30% lower tensile strength vs PE
- PBAT (Polybutyrate Adipate Terephthalate):
- Fully biodegradable in soil (12-24 months)
- Combines with starch for cost reduction
2.2 Recycled & Mono-Material Solutions
- Post-Consumer Recycled (PCR) PE:
- 50-80% recycled content without performance loss
- Used by Amazon in “Frustration-Free Packaging”
- All-PE Structures:
- Eliminates non-recyclable additives
- Achieves 90% recyclability (APR certification)
3. Certifications & Global Standards
3.1 Key Eco-Labels
| Standard | Requirements | Example Brands |
|---|---|---|
| OK compost INDUSTRIAL | Degrades in 6 months | TIPA® |
| Cradle to Cradle | Material health + circularity | Dow RecycleReady™ |
| ISCC PLUS | Bio-mass balance tracking | BASF Ecovio® |
3.2 Regional Compliance
- EU: Subject to PPWR (2025) requiring 65% recycled content
- USA: California’s SB 54 mandates 30% PCR by 2030
- China: GB/T 38082-2019 for biodegradable films
Siliangdi remains committed to innovation, quality, and service. We will continue developing and producing more eco-friendly, high-performance packaging materials, striving to provide exceptional packaging solutions for more enterprises. Together, we enhance brand value and market competitiveness.
Contact Us for Custom Sizes & Private Label Options
Email：packing@siliangdi.com
Email：SLD@siliangdi.com